golang 如何替换掉字符串里面的换行符

原始字符串：

-----BEGIN LICENSE KEY-----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n-----END LICENSE KEY-----

直接使用n

license := `-----BEGIN LICENSE KEY-----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n-----END LICENSE KEY-----`strings.Replace(license, "n", "", -1)

直接使用n根本无法替换成功，正确的做法是对n再进行转义：n

strings.Replace(license, "n", "", -1)

补充：golang 字符串去除空格和换行符

字符串去除空格和换行符

package main import ( "fmt" "strings" ) func main() { str := "这里是 wwwn.jb51n.net" fmt.Println("-------- 原字符串 ----------") fmt.Println(str) // 去除空格 str = strings.Replace(str, " ", "", -1) // 去除换行符 str = strings.Replace(str, "n", "", -1) fmt.Println("-------- 去除空格与换行后 ----------") fmt.Println(str) }

输出结果为：

-------- 原字符串 ----------这里是 www.jb51.net-------- 去除空格与换行后 ----------这里是www.jb51.net

以上为个人经验，希望能给大家一个参考，也希望大家多多支持软科小院。如有错误或未考虑完全的地方，望不吝赐教。